For Exercises 39-44, determine whether the statement is true or false for an acute angle θ by using the fundamental identities. If the statement is false, provide a counterexample by using a special angle: π 3 , π 4 , or π 6 . sin 2 θ + tan 2 θ + cos 2 θ = sec 2 θ
For Exercises 39-44, determine whether the statement is true or false for an acute angle θ by using the fundamental identities. If the statement is false, provide a counterexample by using a special angle: π 3 , π 4 , or π 6 . sin 2 θ + tan 2 θ + cos 2 θ = sec 2 θ
Solution Summary: The author evaluates the trigonometric function mathrmsin2theta + math
For Exercises 39-44, determine whether the statement is true or false for an acute angle
θ
by using the fundamental identities. If the statement is false, provide a counterexample by using a special angle:
π
3
,
π
4
,
or
π
6
.
1. A bicyclist is riding their bike along the Chicago Lakefront Trail. The velocity (in
feet per second) of the bicyclist is recorded below. Use (a) Simpson's Rule, and (b)
the Trapezoidal Rule to estimate the total distance the bicyclist traveled during the
8-second period.
t
0 2
4 6 8
V
10 15
12 10 16
2. Find the midpoint rule approximation for
(a) n = 4
+5
x²dx using n subintervals.
1° 2
(b) n = 8
36
32
28
36
32
28
24
24
20
20
16
16
12
8-
4
1
2
3
4
5
6
12
8
4
1
2
3
4
5
6
=
5 37
A 4 8 0.5
06
9
Consider the following system of equations, Ax=b :
x+2y+3z - w = 2
2x4z2w = 3
-x+6y+17z7w = 0
-9x-2y+13z7w = -14
a. Find the solution to the system. Write it as a parametric equation. You can use a
computer to do the row reduction.
b. What is a geometric description of the solution? Explain how you know.
c. Write the solution in vector form?
d. What is the solution to the homogeneous system, Ax=0?
College Algebra with Modeling & Visualization (5th Edition)
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Fundamental Trigonometric Identities: Reciprocal, Quotient, and Pythagorean Identities; Author: Mathispower4u;https://www.youtube.com/watch?v=OmJ5fxyXrfg;License: Standard YouTube License, CC-BY